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Miscellaneous Mechanical Ascenders

These ascenders don't fit into the other categories. The Tibloc and Hand are unique. The Unicender is simply bizarre looking - but it works. The Rope Runner and Akimbo are even stranger, at least to caver eyes: only a Tarzan can evaluate them properly.

Gallery

Image ID Device ↓ Description Acquired Weight ↓ Height ↓ Width ↓ Thickness ↓ Std. volume ↓
Arborist Cinch 2039
3618
Arborist Cinch Cast Al, spring loaded steel cam /w lever, steel anvil
  • Robert Brock, 2016
  • Robert Wells, 2023
587 134 150 51 1029
Bat Climber 173 Bat Climber Flat Al side plates, double cam. One bolt & one pin pivot. Gary Storrick, 2004 239 52 156 42 338
Condor 2354 Condor Stamped Al grips, pivoting channel and cam /w guide pin, spring-loaded safety Noco Gear, 2018 255 197 104 26 527
GET International Lineboss 2284 GET International Lineboss Milled Al body, spring-loaded lever /w control-arm actuating cam, 2 bollards. Bob Thrun Collection, 2017 494 122 89 63 678
Notch Equipment Rope Runner Pro 3432 Notch Equipment Rope Runner Pro Milled Al body, bird, teather, lever, and tender /w pulley; all bolted together with some springs & rollers TreeStuff.com, 2021 429 158 97 45 692
Offset Ascending Rack 1261 Offset Ascending Rack Complex handmade device, main Al bar with 3 subsidiary pivoting Al levers, each with split roller and SS guide bar, bicycle chain link auxiliaries. Gordon Svedberg, 2010 416 142 119 45 752
Offset Ascending Rack 2927 Petzl Chicane Auxilliary brake for Petzl Zig-zag The Safe Path / Amazon.com, 2019 248 85 30 212 539
Petzl Tiblock B01 131
132
2073
3447
Petzl Tiblock B01 Forged U-shaped channel with internal teeth, angled slot for carabiner.
  • On Rope 1, 1999
  • Inner Mountain Outfitters, 1999
  • Bob Thrun Collection, 2017
  • Diana E. Crow, 2020
39 52 36 18 34
Petzl Tiblock B01 2357 Petzl Tiblock B01B Forged U-shaped channel with internal teeth, plastic guide, angled slot for carabiner. Got Your Gear, 2018 34 54 39 22 45
Petzl Tiblock B01 2373 Petzl Tiblock B01B Sample Forged U-shaped channel with internal teeth, plastic guide, angled slot for carabiner. On Rope 1, 2018 34 54 39 22 45
Petzl Zigzag 1983 Petzl Zigzag, Version A Stamped Al side plates. Al pulley, pivoting/rotating eye, "sprocket chain" grip OmniProGear, 2014 317 115 87 29 291
Petzl Zigzag 2906 Petzl Zigzag, Version B Stamped Al side plates. Al pulley,  three eyes, "sprocket chain" grip The Safe Path / Amazon.com, 2019 361 86 129 32 353
Petzl Zigzag 2907 Petzl Zigzag Plus Stamped Al side plates. Al pulley, pivoting/rotating eye, 2 plain eyes, "sprocket chain" grip The Safe Path / Amazon.com, 2019 420 127 129 32 518
Rock Exotica Akimbo 2940 Rock Exotica Akimbo Three hinged aluminum links with adjustable friction bollards Monarch Rope, 2019 262 85 103 32 278
Singing Tree Rope Runner 2296 Singing Tree Rope Runner Milled Al body & stamped Al bird, teather and lever, all bolted together with some springs & rollers; separate tender /w pulley Bob Thrun Collection, 2017 356 159 75 45 535
Storrick – Ledbury Jug Handles 3480 Storrick – Ledbury Jug Handles 7.8 mm. 1018 rod hande, 3.2 mm. mild steel cable hook & guard, for crimped 1/8" cable Gary Storrick & Amy Skowronski, 2021 251 167 45 23 175
Storrick – Sashenka 3576 Storrick – Sashenka Handled, 3 gripping plates, L-shaped safety on frame Gary Storrick, 2023 382 235 135 43 1369
Stubai Karabiner K Climbing Irons 243 Stubai Tricouni K Climbing Irons Welded 7.1 mm. rods, 2 V notches, 2 hooks, oval eye Anthony Burdett, 2008 155 161 53 28 240
Unicender, Version A 186 Unicender, Version A Milled Al, 5 plates & 1 angle connected "sprocket chain" style Morgan Thompson, 2005 354 142 76 64 689
Unicender, Version A 2280 Unicender, Version B Milled Al, 5 plates & 1 angle connected "sprocket chain" style, goo Bob Thrun Collection, 2017 356 141 76 64 684
Unicender, Version B 1534
2281
Unicender, Version C Milled Al, 5 plates & 1 angle connected "sprocket chain" style, phosphor bronze wear bars
  • Morgan Thompson, 2010
  • Bob Thrun Collection, 2017
361 144 76 64 692
Unicender, Version C 1522 Unicender, Version D Milled Al, 5 plates (4 skeletonized) & 1 angle connected "sprocket chain" style WesSpur Tree Equipment, 2010 306 144 76 50 552
Unicender, Version D 1546
2282
Unicender, Version E Milled Al, soft anodized, 5 plates (4 skeletonized) & 1 angle connected "sprocket chain" style
  • Hanny Piltz, 2011
  • Bob Thrun Collection, 2017
310 155 76 51 596
Vertical Emergency Mini Clamp 3540 Vertical (Вертикаль) Emergency Mini Clamp (Зажим аварийный Мини) Forged U-shaped channel with internal teeth, angled slot for carabiner. Artyom Babin (Артём Бабин), 2022 42 52 38 17 34
Wild Country Hand 106
2295
Wild Country Hand Two forged side plates bolted together, internal ribbed V-groove for rope, no moving parts
  • Exkursion, 1994
  • Bob Thrun Collection, 2017
106 111 46 30 153

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